The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2012
Filed:
Jan. 06, 2010
Seokkap Ko, Gwangju, KR;
Ilkyun Park, Seoul, KR;
Nac Woo Kim, Gwangju, KR;
Byung-tak Lee, Gyeonggi-do, KR;
Jai Sang Koh, Gwangju, KR;
Seokkap Ko, Gwangju, KR;
Ilkyun Park, Seoul, KR;
Nac Woo Kim, Gwangju, KR;
Byung-Tak Lee, Gyeonggi-do, KR;
Jai Sang Koh, Gwangju, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed is a multicast controlling apparatus and method in a multi hop network. The multicast controlling apparatus in the multi hop network includes a packet determining unit to receive a packet from a group management query device or a station, and to determine whether the received packet is a group management protocol packet, a packet type distinguishing unit to distinguish a type of the received packet when the received packet is determined as the group management protocol packet, and a packet transmitting unit to transmit the packet to a second port excluding a first port that receives the query message, when the received packet is determined as the query message.